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Analysis of the Tunable Asymmetric Fiber F-P Cavity for Fiber Strain Sensor Edge-Filter Demodulation 被引量:4
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作者 Haotao CHEN Youcheng LIANG 《Photonic Sensors》 SCIE EI CAS 2014年第4期338-343,共6页
An asymmetric fiber (Fabry-Perot, F-P) interferometric cavity with the good linearity and wide dynamic range was successfully designed based on the optical thin film characteristic matrix theory; by adjusting the ma... An asymmetric fiber (Fabry-Perot, F-P) interferometric cavity with the good linearity and wide dynamic range was successfully designed based on the optical thin film characteristic matrix theory; by adjusting the material of two different thin metallic layers, the asymmetric fiber F-P interferometric cavity was fabricated by depositing the multi-layer thin films on the optical fiber's end face. The asymmetric F-P cavity has the extensive potential application. In this paper, the demodulation method for the wavelength shift of the fiber Bragg grating (FBG) sensor based on the F-P cavity is demonstrated, and a theoretical formula is obtained. And the experimental results coincide well with the computational results obtained from the theoretical model. 展开更多
关键词 Fiber sensor DEMODULATION ASYMMETRIC F-P cavity edge-filter
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